The Effect of Increasing Dietary Manganese from an Organic Source on the Reproductive Performance of Sows

Clint E. Edmunds (), Alyssa S. Cornelison, Chantale Farmer, Christof Rapp, Valerie E. Ryman, Wes P. Schweer, Mark E. Wilson and C. Robert Dove ()
Additional contact information
Clint E. Edmunds: Department of Biology, 2000 Clayton State Boulevard, Clayton State University, 30260 Morrow, Georgia
Alyssa S. Cornelison: Zinpro Corporation, 10400 Viking Drive, Suite 240, Eden Prairie, MN 55344, USA
Chantale Farmer: Agriculture and Agri-Food Canada, Sherbrooke R&D Centre, 2000 College, Sherbrooke, QC J1M 0C8, Canada
Christof Rapp: Zinpro Corporation, Akkerdistel 2E, 5831 PJ Boxmeer, The Netherlands
Valerie E. Ryman: Department of Animal and Dairy Science, 425 River Rd, University of Georgia, 30602 Athens, Georgia
Wes P. Schweer: Zinpro Corporation, 10400 Viking Drive, Suite 240, Eden Prairie, MN 55344, USA
Mark E. Wilson: FeedworksUSA, 2407 Ashland Avenue, Cinncinati, OH 45206, USA
C. Robert Dove: Department of Animal and Dairy Science, 425 River Rd, University of Georgia, 30602 Athens, Georgia

Agriculture, 2022, vol. 12, issue 12, 1-16

Abstract: The objective of this study was to determine the effect of dietary manganese on the reproductive performance of sows. Sows ( n = 39; 231 ± 8 kg) were randomly assigned to one of three dietary levels of supplemented Mn (CON: 0 ppm Mn; PRO20: 20 ppm Mn; PRO40: 40 ppm Mn). The experimental treatments were initiated at breeding and continued through two parities. The sows were blocked by parity within each farrowing group. The data were analyzed as a randomized complete block design using the MIXED procedure of SAS with diet as a fixed effect and block as a random effect. The lactation feed intake increased in the PRO20 sows compared to the CON and PRO40 sows ( p < 0.05). The PRO20 and PRO40 sows farrowed piglets with improved average daily gain from birth to weaning (CON 214 g/day; PRO20 237 g/day; 220 g/day; p < 0.05) compared to the CON sows. The milk fat content was lower in the PRO20 (5.5%) and PRO40 sows (6.1%; p < 0.05) compared to the CON sows (7.8%), possibly due to increased milk demand. Supplementary dietary Mn throughout two gestation and lactation cycles led to improved birth weights and pre-weaning growth of piglets.

Keywords: lactation; manganese; reproductive performance; sows (search for similar items in EconPapers)
JEL-codes: Q1 Q10 Q11 Q12 Q13 Q14 Q15 Q16 Q17 Q18 (search for similar items in EconPapers)
Date: 2022
References: View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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